Wokth



(No Model.)

. J. O. HOLLINGSWORTH.

HUB FOR VEHICLE WHEELS; No. 314,024. Patented Mar. 17, 1885.

11 Attorneys UNITED STATES 1 PATENT OF CE.

JOEL C. HOLLINGSVVORTH, OF VVILNA, MARYLAND.

HUB FOR VEHICLE-WHEELS.

SPECIFICATION forming part of Letters Patent No. 314,024, dated March 17, 1885.

Application filed July 28, 1883. (No model.)

To all whom it may concern.-

Be it known that I, J OEL O. HOLLINGS- WORTH, residing at Wilna, Harford county, Maryland, have invented certain new and useful Improvements in Hubs forV'ehicle-Wheels, of which the following is a specification, reference being had to the accompanying drawings, forming part hereof, in which Figure 1 is a side elevation of my improved hub. Fig. 2 is a vertical longitudinalsection of the same.

My invention relates to attachments for securing the spokes to the hubs of vehicles, and the object of my invention is to provide a simple and efficient structure for the purpose which shall be readily attached to the hub and which shall afford a secure hold to the spokes while strengthening the hub itself.

To these ends my invention consists of a metallic outer casing for the hub, provided with staggered mortises to register with similar mortises in the hub, and being of sufficient depth or thickness to wholly support the spokes, the interior of the metallic casing corresponding in shape with the exterior of the hub, tapering from its inner to its outer end, and formed with a lip for the purpose of preventing the hub from splitting.

Referring to the said drawings, A designates the wooden hub or core, having the central bore, a, for the spindle of the axle. l designates the outer and 2 the inner end of the hub. a designates the mortises which are staggeredthat is, arranged in two parallel alternating series-and which are bored obliquely, so that the outer ends of the spokes shall lie in the same circular line. a designates a circular shoulder formed on the inner part of the hub, for a purpose to be presently stated. The wooden core A is formed tapering from the shoulder a to the inner end, 2.

B designates the metallic portion, which is formed interiorly to correspond with the taper of the hub A. Mortises b are formed through the casing B, staggered and corresponding with the mortises a. At its outer end the casing B is formed with an internal lip, b, which corresponds in shape with the shoulder (1 of the wooden portion A. At the point where the mortises b are formed in the casing B the said casing is of such depth that it will ofdtself constitute an entirely sufficient support for the inner ends of the spokes, even should the mortises a be omitted.

In constructing this hub the wooden portion A is driven into the metallic portion B by inserting the smaller end of the part A into the larger end of the part B and administering successive blows from a hammer upon the larger end of the part A. The part A is thus driven into the part B till the lip b of the lat ter overlaps the shoulder a of the former, when the mortises a and b will be brought into line. When the hub is in use, the casing B prevents any splitting of the hub A, the lip b completing this purpose, and the part B also serves as the firm support of the spokes.

Heretofore hubs have been constructed with inner wooden portions and outer metallic portions, the latter being provided with spokemortises, and the metallic portions or jackets have been made with tapered bores, fitting a corresponding shape of the wooden portion. Therefore I do not broadly claim such construction; but it will be seen that I extend my metallic jacket to one end, 2, of the wooden portion. Such construction prevents the wood from splitting at said end 2, and to prevent the other end from splitting I employ the beveled joint or contact a? I). Where metallic jackets have been heretofore used, difficulty has been experienced because of the wood splitting at the ends of the metal jacket. To prevent such splitting Iaim to firmly compress the wood at such point. To such end I provide the wood A with a bevel, a, which flares upwardly and outwardly in the direction opposite that in which thepart Ais driven into the jacket B. I also form the jacket B with an internal taper, b, at the forward end of its bore. By this construction, when the jacket is driven onto the wood A, the bevel b binds on bevel a and compresses that portion of the hub by a wedging action, and thus reduces the danger of splitting to the minimum. By my construction I also provide the wooden core with a square annular stop-shoulder, a in advance of the bevel a and the metallic jacket with a square internal shoulder, 12 which engages shoulder a and limits the inward move- IOO ment of the jacket. These limiting-shoulders prevent the wedging part b from being forced so far on the part a as to crush or otherwise injure the fibers of the wood, and yet permit the proper operation of the parts to secure the desired compression. By extending my jacket to and flush with one end of the huh, I dispense with the necessity of the usual band, and provide a construction which will firmly and strongly bind the wooden body or core.

\Vhat I claim, and desire to secure by Letters Patent of the United States, is- The combination, in a hub, of the Wooden body A, provided with external taper, a and with a stop-shoulder, a arranged in advance of such taper, and the jacket B, having spoke- 

